7166667001 has 12 divisors (see below), whose sum is σ = 7740927012. Its totient is φ = 6595747488.

The previous prime is 7166666989. The next prime is 7166667029. The reversal of 7166667001 is 1007666617.

It can be written as a sum of positive squares in 2 ways, for example, as 1939521600 + 5227145401 = 44040^2 + 72299^2 .

It is a de Polignac number, because none of the positive numbers 2^k-7166667001 is a prime.

It is a super-2 number, since 2×7166667001² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (7166667031) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1748911 + ... + 1753003.

It is an arithmetic number, because the mean of its divisors is an integer number (645077251).

Almost surely, 2^7166667001 is an apocalyptic number.

It is an amenable number.

7166667001 is a deficient number, since it is larger than the sum of its proper divisors (574260011).

7166667001 is an equidigital number, since it uses as much as digits as its factorization.

7166667001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4840 (or 4473 counting only the distinct ones).

The product of its (nonzero) digits is 63504, while the sum is 40.

The square root of 7166667001 is about 84656.1693026563. The cubic root of 7166667001 is about 1927.9942832003.

The spelling of 7166667001 in words is "seven billion, one hundred sixty-six million, six hundred sixty-seven thousand, one".